anti-siphonage device (backsiphonage preventer, anti-vacuum device)
真空热电变换器
vacuum thermo-electric converter
暂无补充释义。
相关词条
vacuum chamber
bale, casc (barrel), wood, roller, stone, vacuum-gripper, two-arm gripper
neon light tube vacuum pump
vacuum-tube relay【电】;valve relay【电】
final vacuum
vacuum-tube clipping circuit【电子】
thermos bottle/vacuum bottle